I thought about that, but it would be almost impossible to implement in way it should be done)
Please elaborate.
what stops from someone from scramming someone and the scrammer just makes another account?
Social account linking, maybe. I think you touched on another important point, though -- defaulters are almost always scrammers, not people who ever negotiate paying off a small portion of debt or are ever responsive again on the accounts they used to scram with.
We tried doing collaborating on publishing this info a few times before, and it always falls apart because lenders are too lazy. Two websites were previously made to try doing what the OP did, and I once made a simple collaborative Google Doc for trusted lenders - manually inserted every single loan Sen made using data from the giant IBB thread - but it all ended abandoned.
This would be a fully automated system. No data will be input manually other than creating accounts and passwords.
This scamming issue certainly has crossed my mind. I was thinking about perhaps adding a very long form where users can put as much information about themselves as they would like. Phone number, address, facebook account, etc would be some of the information that could be provided. This would of course all be optional.
Then it would be much easier to avoid scammers, because fake facebooks are easy to spot. Also if you give them a call on their phone and some spanish speaking women answers you know something is not on the level...
I was also considering perhaps tracking ip addresses to particular accounts, but I would like to avoid this if possible.